could double-glaze
Verbo regular: double-glaze - double-glazed- double-glazed

Afirmación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could double-glaze
you could double-glaze
she could double-glaze
we could double-glaze
you could double-glaze
they could double-glaze 	I could be double-glazing
you could be double-glazing
she could be double-glazing
we could be double-glazing
you could be double-glazing
they could be double-glazing	I could have double-glazed
you could have double-glazed
she could have double-glazed
we could have double-glazed
you could have double-glazed
they could have double-glazed	I could have been double-glazing
you could have been double-glazing
she could have been double-glazing
we could have been double-glazing
you could have been double-glazing
they could have been double-glazing	

Negación 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
I could not double-glaze
you could not double-glaze
she could not double-glaze
we could not double-glaze
you could not double-glaze
they could not double-glaze 	I could not be double-glazing
you could not be double-glazing
she could not be double-glazing
we could not be double-glazing
you could not be double-glazing
they could not be double-glazing	I could not have double-glazed
you could not have double-glazed
she could not have double-glazed
we could not have double-glazed
you could not have double-glazed
they could not have double-glazed	I could not have been double-glazing
you could not have been double-glazing
she could not have been double-glazing
we could not have been double-glazing
you could not have been double-glazing
they could not have been double-glazing	

Forma interrogativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I double-glaze?
could you double-glaze?
could she double-glaze?
could we double-glaze?
could you double-glaze?
could they double-glaze? 	could I be double-glazing?
could you be double-glazing?
could she be double-glazing?
could we be double-glazing?
could you be double-glazing?
could they be double-glazing? 	could I have double-glazed?
could you have double-glazed?
could she have double-glazed?
could we have double-glazed?
could you have double-glazed?
could they have double-glazed? 	could I have been double-glazing?
could you have been double-glazing?
could she have been double-glazing?
could we have been double-glazing?
could you have been double-glazing?
could they have been double-glazing? 	

Forma interro-negativa 	
Forma simple 	Forma con V-ing 	Perfecto 	Perfecto con V-ing 	
could I not double-glaze?
could you not double-glaze?
could she not double-glaze?
could we not double-glaze?
could you not double-glaze?
could they not double-glaze? 	could I not be double-glazing?
could you not be double-glazing?
could she not be double-glazing?
could we not be double-glazing?
could you not be double-glazing?
could they not be double-glazing? 	could I not have double-glazed?
could you not have double-glazed?
could she not have double-glazed?
could we not have double-glazed?
could you not have double-glazed?
could they not have double-glazed? 	could I not have been double-glazing?
could you not have been double-glazing?
could she not have been double-glazing?
could we not have been double-glazing?
could you not have been double-glazing?
could they not have been double-glazing?